16541040 has 80 divisors (see below), whose sum is σ = 52559136. Its totient is φ = 4303360.

The previous prime is 16541029. The next prime is 16541069. The reversal of 16541040 is 4014561.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 16540998 and 16541016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403420 + ... + 403460.

Almost surely, 2^16541040 is an apocalyptic number.

16541040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16541040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26279568).

16541040 is an abundant number, since it is smaller than the sum of its proper divisors (36018096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16541040 is an frugal number, since it uses more digits than its factorization.

16541040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 16541040 is about 4067.0677397850. The cubic root of 16541040 is about 254.7930654882.

The spelling of 16541040 in words is "sixteen million, five hundred forty-one thousand, forty".